Upcoming moOde 7 series

[DRONE7]

The new 12-band EQ replaces the old 4-band EQ. There no need for two of them.

Excellent ! Thanks Tim and Bitlab !

[Coustard]

@Coustard to migrate existing settings:  Q = 0.5 / BW  (where BW is the EqFa filter bandwidth, not general bandwidth)

Actually, and at the risk of sounding ungrateful, are you sure? I know this is an oft-quoted conversion but I've just spent an afternoon capturing EQ curves from moOde6 .71 in REW and it doesn't look right.

Methodology: 
1. Play white noise from moOde, set a single band of EQ to +10dB at 1kHz at various bandwidths and capture averaged (16x) RTA curves in REW. 
2. Play white noise in Apple Logic (DAW), set a single band of built-in EQ to +10dB at 1kHz at various Q factors and capture as above.
3. Visually match curves (example attached)
4. Tabulate.

I should say that I tried a variety of Eqs in Logic ('standard' types rather than Ye Olde recreations) to confirm kind of consensus on curve shape and they all basically agreed.

Results (moOde BW v Logic Q):
0.2      3.8
0.3      2.6
0.4      1.9
0.5      1.5
0.6      1.3
0.7      1.1
0.8      1
0.9      0.93
1         0.79
1.1      0.75
1.2      0.71
1.3      0.67
1.4      0.6
1.5      0.54
2         0.4

My undergraduate maths is too rusty to work out the relationship but it's plainly not linear. Assuming the maths involved is the same for the new 12-band Eq then this will work okay for me as a look-up table, but it would be nice to have an equation.

Varying gain changes things a bit too - moOde's eq becomes slightly broader than Logic as I reduce band gain but I can live with that.

There's some interesting stuff at http://www.sengpielaudio.com/calculator-bandwidth.htm but their equations still don't produce what I'm seeing in REW.

As I said, I don't want to appear ungrateful - it's great to have the facility and this is more about curiosity than anything else.

[bitlab]

@Coustard to migrate existing settings:  Q = 0.5 / BW  (where BW is the EqFa filter bandwidth, not general bandwidth)

Actually, and at the risk of sounding ungrateful, are you sure? I know this is an oft-quoted conversion but I've just spent an afternoon capturing EQ curves from moOde6 .71 in REW and it doesn't look right.

Methodology: 
1. Play white noise from moOde, set a single band of EQ to +10dB at 1kHz at various bandwidths and capture averaged (16x) RTA curves in REW. 
2. Play white noise in Apple Logic (DAW), set a single band of built-in EQ to +10dB at 1kHz at various Q factors and capture as above.
3. Visually match curves (example attached)
4. Tabulate.

I should say that I tried a variety of Eqs in Logic ('standard' types rather than Ye Olde recreations) to confirm kind of consensus on curve shape and they all basically agreed.

Results (moOde BW v Logic Q):
0.2      3.8
0.3      2.6
0.4      1.9
0.5      1.5
0.6      1.3
0.7      1.1
0.8      1
0.9      0.93
1         0.79
1.1      0.75
1.2      0.71
1.3      0.67
1.4      0.6
1.5      0.54
2         0.4

My undergraduate maths is too rusty to work out the relationship but it's plainly not linear. Assuming the maths involved is the same for the new 12-band Eq then this will work okay for me as a look-up table, but it would be nice to have an equation.

Varying gain changes things a bit too - moOde's eq becomes slightly broader than Logic as I reduce band gain but I can live with that.

There's some interesting stuff at http://www.sengpielaudio.com/calculator-bandwidth.htm but their equations still don't produce what I'm seeing in REW.

As I said, I don't want to appear ungrateful - it's great to have the facility and this is more about curiosity than anything else.

On the contrary, I am grateful that someone else also took a look at it :-)

To prevent clutter of the release hread;  shall we take the discussion to an other exsiting thread http://moodeaudio.org/forum/showthread.p...316&page=3 ?
I have also added there one of my measurements. Also I have some issue with gain when I combine multiple filters I see an issue with the gain, see the result there.

[moodenigo]

The new 12-band EQ replaces the old 4-band EQ. There no need for two of them.

This is glorious news

[moodenigo]

Here's the new 12-band Parametric EQ contribution from @bitlab :-)

Will it also allow shelving filters as the first/last, or only boosting/cutting around a resonant frequency?

[Tim Curtis]

Indeed it is :-)

I'll try to provide an update next week on the wonderful Library enhancements contributed by @Atair to provide improved support for Classical music collections and alternate tagging schemes.

-Tim

[Niklasmagnus]

Is the peq always active, meaning both internet radio, Spotify “connect”, Bluetooth etc?
Can you add peq memory set up of 5? I’m planing to run the RPI4 with Moode
, usb connected to a dac/headphone amp and want to be able to use different peq for different headphones.

[Tim Curtis]

PEQ supports output from MPD, Airplay and Spotify renderers.

You can create as many EQ curves as you like, then just select from the list.

[Niklasmagnus]

PEQ supports output from MPD, Airplay and Spotify renderers.

You can create as many EQ curves as you like, then just select from the list.

Great, finally I found the software I was looking for.
And the 12 band peq will be very welcome.

[Tim Curtis]

Hi,

The moOde crew is currently testing and debugging Release Candidates which means we are getting pretty close to the point where we can freeze the code and begin the always enjoyable process of release administration.

Some core components have been updated

- Bump to bluez-alsa 3.0.0 w/SBC XQ codec
- Bump to upmpdcli 1.5.0
- Bump to Linux kernel 5.4.77 (includes updated Allo Piano 2.1 driver and new Boss 2 driver)
- Bump to MPD 0.22.3
- MPD Config supports 705.6/768 kHz rates

A couple new audio devices added

- Allo Boss 2 DAC 
- EWCG Discrete R2R DAC (this device is from user @bigbulb, pics below)
         

We also changed from Bandwidth to Q in the new 12-band Parametric EQ since Q is more commonly used.

   

Draft release notes

Code:

########################################################
//
// 2020-MM-DD TC moOde 7.0.0
//
########################################################

New features

- NEW: Selective resampling and Custom SoX recipes
- NEW: 12-band Parametric EQ for AutoEQ headphone equalizing
- NEW: Radio view with sort/group and metadata
- NEW: Enhanced Folder view with cover art and advanced search
- NEW: Library performance improvements
- NEW: Library advanced filtering engine
- NEW: Library Artist list includes Performers, Conductors, Album Artists
- NEW: Library option for the key used to differentiate albums
- NEW: Library option to include the comment tag
- NEW: Library support for multiple occurrences of certain tags
- NEW: Albums played directly if already in the Queue
- NEW: MPD resource allocation options for buffers, playlist
- NEW: Auto-shuffle Album mode option
- NEW: Option to display thumbnails in the Queue
- NEW: Option for Renderer backdrop (Cover or Backdrop image)
- NEW: Add next, Play next by inserting after current item
- NEW: Support for up to 384K rate for DDDAC1794 NOS

Updates

- UPD: Bump to Linux kernel 5.4.77 build #1371
- UPD: Bump to MPD 0.22.3
- UPD: Bump to bluez-alsa 3.0.0 w/SBC XQ
- UPD: Bump to librespot 0.1.3
- UPD: Bump to squeezelite 1.9.7-1270
- UPD: Bump to upmpdcli 1.5.0
- UPD: Bump to Auto-shuffle (ashuffle) 3.10.0
- UPD: Add higher resolutions for thumbnail generator
- UPD: Add "Update Library" to action list for Clock Radio
- UPD: Add place holder height/width for native lazyload
- UPD: Add "Now Playing" EQ style icon to the Queue and Library
- UPD: Add HD badging to Playbar, CoverView amd Playback
- UPD: Add more tags to the Extra metadata Appearance option
- UPD: Remove unused MPD plugins soundcloud, tidal, qobuz
- UPD: Remove Google Play Music service from upmpdcli (discontinued)
- UPD: Remove Ethernet port fix for Pi-3B+ due to ethtool fail
- UPD: Show volume level on the Playbar
- UPD: Option to show mapped dB volume in the knob
- UPD: Generate additional set of small thumbnails for lists
- UPD: Include Add next, Play next in list of "One touch actions"
- UPD: Improve logging for Library update process
- UPD: Report 24 bit if ALAC encoded m4a reports 32 bit
- UPD: Honor "Resume MPD" setting when disconnecting a renderer
- UPD: Only load CoverView Queue HTML when it's opened
- UPD: Auto-configure expanded to include most settings

Audio devices

- NEW: Allo Boss 2 DAC
- NEW: EWCG Discrete R2R DAC

Radio stations

- NEW: WKCR 89.9 FM (Columbia University)
- UPD: Radio Caroline playable URL
- UPD: Soma FM - DEF CON Radio logo image
- UPD: Update NME station URL's to 256 kbps MP3
- DEL: Radio X London due to metadata issues
- DEL: Megarock Radio due to failed stream link

Bug fixes

- FIX: Album key and cross-index for Tag and Album views
- FIX: Track list show/hide not preserved when switching views
- FIX: Manual entry of SSID not accepting embedded space
- FIX: Graphic EQ curves are +6 alsaequal units too high
- FIX: Listall.sh script not handling mixed case file extentions
- FIX: Airplay and Spotify renderers started after BlueZ disconnect
- FIX: Disabled volume knob processing scroll/swipe events
- FIX: Regression causing Folder view, Advanced search to fail
- FIX: Item highlight/de-highlight in all views
- FIX: Radio Instant play not obeying the "No Action" option
- FIX: Insufficient bottom padding on Library tracks list
- FIX: Wrong Playlist width (mobile) when CV auto-display enabled
- FIX: Library special year search partially broken